6G Celicas Forums

no, more like all across the board with toyota engines ( including Scions and Lexus )

apparently the problem shows up at random, like I may present for me and not for you while both having the same engine with similar setups.

There are several tutorials on how to add the resistors, they may use different locations to add it, but essentially the same thing, here is just one of them
CLICK HERE !!!!


BTW, once you pass this little bump, is a great little unit, and on the easy side of tuning, I played with the software, but sold my unit before I installed it because I won't be modding my engine enough to benefit from it.

This post has been edited by Culpable04: Apr 9, 2012 - 7:23 PM

Wow THANKS!

From your experience, did you have to do the resistor mod? I've never seen that before...

i had to do it on my car and it helped a little, but between hard shifts the stock ECU kept trying to take over. im done with piggybacks. if i can find a stand alone, ill use that from now on

Hi there,
Well there are a number of ways to achieve control the desired parameters. Of course engine-management is by no means
created equal. It is important to understand how the factory OEM architecture works, the limits, and furthermore understand
how the interfacing functions work on engine-management X, Y, Z.

It's about 8:41AM, almost time for my coffee. So I will give you a general over-view.
( Scatch that, my significant other has decided to be a doll and make me some coffee )

So if I understand correctly you have a 5SFE with a CT20B equipped or did you swap a 3SGTE into
a 1998 Celica GT. No? If you have equipped a 3SGTE in your ST204, and you equipped the correct harness
and ancilary systems. You simply could install a Apex-i Power FC. Which is infact a standalone.

However, noticing that you are from Seattle. I'll default to that you probably have a 5SFE and ST204, and
that you aren't rocking something from the Japanese market.

E-Management Ultimate and E-Manage does not make a ( base map or harness ) kit for the 5SFE.
Or not so I have seen. The e-management itself is configured to a custom / universal set up. This also requires a custom suppliment
harness that must be fabricated. You can select specific features you want to use, but the corresponding sensors must be in place or added.

How e-Management / ultimate works? The simplifed answer is as fallows : 1. The factory original ECU is placed in closed loop, 2. The E-manage basically is telling the ECU that
everything is operating as normal. However the E-Management acts as the middle man communicating to the ECU. 3. The e-Manage itself basically communicates with the
ancilary hardware, and acts as a stand-alone of sorts. Spark and Fuel can be controlled. It has imputs, much like a standalone.

Where as the Apex-i Neo or AFC controllers are really merely fuel correction devices allow people with basic bolt on items to correct
fuel trims, however these are different in that they actually alter / skew the signal the ECU reads. The points of control are far less.

Things you need to be aware of, the e-management or for that matter any piggy back is limited to operate with-in the limits of the
factory architecture. Some management systems aren't as sophisticated and therefore in some aspects more ideal and others are far
more complex then the E-management itself.

You really need to decide if simply not going with a complete tride and true stand-alone is not better then going with a piggy back.
If you were in California, I would physically show you what I mean and so on.

Beyond this you have a few methods to approach engine-management. Some less sophisticated but it gets the job done with the
understood limits and draw backs. The other end of the spectrum are top level engine-management systems, which basically in terms
of sophistication start at like 10,000 USD for the ECU itself, and climb from there.

Isolated Architecture : This is where fuel & ignition functions are controlled by seporate control units. <- This might be an alternative cost
effective direction.

Combined Architecture : This is where a multitude of parameters are controlled, such as variable valve timing, fuel, spark, a number of customizable
mapping all in a single unit. These also require typically customized harness and ancilary sensor / hardware.

Then the line divdes and in somecases blures further.

Regards,
Mick -

PS, sometimes I won't notice someone has messaged me, so PM's are welcomed.